diff options
Diffstat (limited to 'arch/arm/mach-socfpga/board.c')
| -rw-r--r-- | arch/arm/mach-socfpga/board.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/arm/mach-socfpga/board.c b/arch/arm/mach-socfpga/board.c index 189e12a668..cb6530f7e8 100644 --- a/arch/arm/mach-socfpga/board.c +++ b/arch/arm/mach-socfpga/board.c @@ -18,7 +18,18 @@ DECLARE_GLOBAL_DATA_PTR; -void s_init(void) {} +void s_init(void) { + /* + * Preconfigure ACTLR, make sure Write Full Line of Zeroes is disabled. + * This is optional on CycloneV / ArriaV. + * This is mandatory on Arria10, otherwise Linux refuses to boot. + */ + asm volatile( + "mcr p15, 0, %0, c1, c0, 1\n" + "isb\n" + "dsb\n" + ::"r"(0x0)); +} /* * Miscellaneous platform dependent initialisations |